Ball mill from fire bottle and electric fan!

[Turboconqueringmegaeagle]

its really strange, sometimes i focus on an idea and then with my blinkers on completely ignore what could potentially be a better solution, after i had finished this someone said to me it was a shame i had not utilised the worm drive on the back of every electric fan use to osculate the fan assay...... regardless it works and mills cat litter down to an incredibly fine powder and the round belting was fun to play with.
its been running for a week now and i have 5kg of bentonite clay milled.